Adding External Content to a Dynamic Page

Site URL: http://www.chrisbrock.uk

I have a podcast that is not hosted on Squarespace. Each episode, I create a blog post on my Squarespace site, write a post and embed the episode.

But I have to do this for every episode, and it's a lot of extra work that I could do without.

Ideally, what I'd like is to have a page with a gallery of all episodes, that automatically updates each time there's a new episode published. Click on the episode artwork and it takes you to the external hosting site.

I understand that Squarespace is keen to get people podcasting with its own service, but I'm not ready for that yet. Is it possible to do what I'm thinking of?